🔊 Part 1: Understanding Sound and Vibrations

1. What happens when objects make sounds?

They get hot

They vibrate

They change colour

They become heavier

2. Which of these objects vibrate when they make sounds? (Tick all that apply)

Guitar strings

Drum skin

Your vocal cords

A silent book

3. When you pluck a rubber band, what causes the sound?

The rubber band moving back and forth quickly

The rubber band changing shape permanently

The rubber band getting longer

The rubber band getting warmer

4. Fill in the blanks: Sound is made when objects ____________. The faster something vibrates, the ____________ the sound.

🔬 Part 2: Sound Experiments

5. Experiment: Place your hand gently on your throat and hum. What do you feel? Explain why this happens.

6. Experiment: Stretch a rubber band and pluck it. Then stretch it tighter and pluck again. Describe what happens to the sound and explain why.

7. Look at a drum being played. What would you see happening to the drum skin? Draw and label what you observe.

8. Name three musical instruments and explain what part of each instrument vibrates to make sound.

9. Draw a picture showing sound waves travelling from a vibrating bell to your ear. Use arrows to show the direction of the sound.

10. Explain in your own words why we can't hear sounds in space.